Ls400 Mark Iv - Tyre Sizes

[steve-bedford]

Hi All,

Can someone let me know the trye and rim sizes for the Mark IV please?

Also, any views on which brand gives the best handling, grip, noise, VFM combo will be gratefully received please!

Thanks in advance,

Steve

[maneesh]

Hi All,

Can someone let me know the trye and rim sizes for the Mark IV please?

Also, any views on which brand gives the best handling, grip, noise, VFM combo will be gratefully received please!

Thanks in advance,

Steve

all on the link mate

http://www.lexus.co.uk/approved_preowned/s...IONS+AND+WEIGHT

original tyre was dunlop D8Z

[graham8370]

Hi All,

Can someone let me know the trye and rim sizes for the Mark IV please?

Also, any views on which brand gives the best handling, grip, noise, VFM combo will be gratefully received please!

Thanks in advance,

Steve

all on the link mate

http://www.lexus.co.uk/approved_preowned/s...IONS+AND+WEIGHT

original tyre was dunlop D8Z

Hi,Maneesh, my (new to me) MK!V is the DHP.is the tyre and wheel size to be found anywhere.Currently running on 17'' with 225 / 55 ZR17. With 2 people in front on full lock the tyres are clipping the arches.

Hi All,

Can someone let me know the trye and rim sizes for the Mark IV please?

Also, any views on which brand gives the best handling, grip, noise, VFM combo will be gratefully received please!

Thanks in advance,

Steve

all on the link mate

http://www.lexus.co.uk/approved_preowned/s...IONS+AND+WEIGHT

original tyre was dunlop D8Z

Hi,Maneesh, my (new to me) MK!V is the DHP.is the tyre and wheel size to be found anywhere.Currently running on 17'' with 225 / 55 ZR17. With 2 people in front on full lock the tyres are clipping the arches.

What does Warn : (0%) to the left under my profile mean?

[maneesh]

sounds like your suspension is worn? what's your mileage?

warn just means whether you've had warnings from the moderators on the site 0% is good!

[graham8370]

sounds like your suspension is worn? what's your mileage?

warn just means whether you've had warnings from the moderators on the site 0% is good!

Maneesh, 62K

[robert_ashfield]

I've got a Mk IV with DHP - I'm running 245/50 17" Pirelli PZero Asimmetrico. I think that this was the original tyre size. A while back the guy who designed the DHP, posted the following:

Hi, I am the guy who did DHP spec for LS 400. For reference - Spring rate + 10% only, Height -10mm all round, rear anti roll bar + 1mm to aid turn in. Tyres Pirelli P Zero 245/50x17 Jaguar spec( XK8?).

No change to dampers. Car was done to please Lexus MD, but dealers liked it so we began to sell it !

Ride wasn't bad, but clearly firmer than std. Any other tyre make much worse.

If you want ride quality back, just fit standard springs again.

Note- front suspension quite close to bump stoppers, so ride will suffer if springs have sagged with time.

Hope this helps.

(The full post has some more useful info. ).

Based on my very poor maths you've got another 1.25cm on your tyre radius (225mm * 55% vs. 245mm * 50%). I've never had mine scrape on the arches but people have mentioned that it is *really* close, so this could be your problem.

I suspect that someone has gone for your current size based on price. On www.mytyres.co.uk there are only 4 245/50 tyre options that start at £162 each but you can get 225/55's at a third of the price.

[graham8370]

I've got a Mk IV with DHP - I'm running 245/50 17" Pirelli PZero Asimmetrico. I think that this was the original tyre size. A while back the guy who designed the DHP, posted the following:

Hi, I am the guy who did DHP spec for LS 400. For reference - Spring rate + 10% only, Height -10mm all round, rear anti roll bar + 1mm to aid turn in. Tyres Pirelli P Zero 245/50x17 Jaguar spec( XK8?).

No change to dampers. Car was done to please Lexus MD, but dealers liked it so we began to sell it !

Ride wasn't bad, but clearly firmer than std. Any other tyre make much worse.

If you want ride quality back, just fit standard springs again.

Note- front suspension quite close to bump stoppers, so ride will suffer if springs have sagged with time.

Hope this helps.

(The full post has some more useful info. ).

Based on my very poor maths you've got another 1.25cm on your tyre radius (225mm * 55% vs. 245mm * 50%). I've never had mine scrape on the arches but people have mentioned that it is *really* close, so this could be your problem.

I suspect that someone has gone for your current size based on price. On www.mytyres.co.uk there are only 4 245/50 tyre options that start at £162 each but you can get 225/55's at a third of the price.

Hi, Robert, Many thanks for the reply.Bit concerned Maneesh suggesting the suspension being worn.Happier spending £162 x 4.Will investigate further.